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Nanocellulose was isolated from sugar palm (Arenga pinnata) fiber, using a combined treatment of acid hydrolysis and high-pressure homogenization. Sugar palm fibers (SPF) were initially pretreated with an acid solution to dissolve cellulose. Then, the aqueous solution of cellulose fibers (0.2% w/v) was passed through a high-pressure homogenizer at 20 MPa during 15 cycles to provide sugar palm (SP) nanocellulose. The morphology and structure of SP nanocellulose was characterized using transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and CP/MAS C-NMR spectroscopy. The results showed that the acid hydrolysis of SP fiber, combined with high-pressure homogenization, produced nanocellulose with increased crystallinity, but it did not change the chemical structure of cellulose.

PROPERTIES OF NANOCELLULOSE OBTAINED FROM SUGAR PALM (ARENGA PINNATA) FIBER BY ACID HYDROLYSIS IN COMBINATION WITH HIGH-PRESSURE HOMOGENIZATION